json Freelancers

Browse json job posts for project examples or post your job on oDesk for free!

json Job Cost Overview

Typical total cost of oDesk json projects based on completed and fixed-price jobs.

oDesk json Jobs Completed Quarterly

On average, 126 json projects are completed every quarter on oDesk.

126

Time to Complete oDesk json Jobs

Time needed to complete a json project on oDesk.

Average json Freelancer Feedback Score

json oDesk freelancers typically receive a client rating of 4.65.

4.65
Last updated: May 1, 2015
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Csaba Toth

Csaba Toth

Senior Mobile Developer for IOS8 (SWIFT) & Android...

Hungary - Last active: 6 hours ago - Tests: 9

Hello *****Best Quality and Fast Speed******* I am a talented Mobile application developer. I have a good experience of Mobile application and games. Also, I have developed a lot of Desktop applications and web development. Mobile device platform: - iPhone 6 plus, iPhone 6, iPhone 5s, iPhone5, iPhone4s - iPad Air, iPad4, iPad3, iPad mini - Google Nexus 5, Samsung Galaxy S5, S4, S3, HTC One My skill-set: - Native: iOS, Android, Windows8 (Objective-C, Swift, Java, C#), JNI, NDK (C/C++) - Hybrid: PhoneGap, Xamarin, Titanium (HTML5, jQuery Mobile, C#) - Web service: XML/JSON, REST/SOAP - Cloud backend: Parse.com, Parse SDK, Parse REST, Parse Cloud Code, Amazon S3 EC2 AWS, Firebase, Twillio, Plivio - Chat & Messaging Engine: XMPP, Jabber, OpenFire, OpenTok WebRTC, Ejabberd, Erlang - Video/audio/image processing: OpenCV, GPU Image, CoreAudio, EZAudio, Pitch Control, Bass, AVFoundation - Video/audio streaming, codec: Wowza, Red5, H.323, MPEG-4 - VOIP, Cloud Communication: Twillio, Heroku, Tokbox - Speech recognition, text-to-speech, Siri, OpenEar - HTML5, PHP, ASP, JSP, C# and their frameworks - MySQL, SQLite, Oracle, SQL Server, ODBC - Facebook, Twitter, Linkedin, Instagram, Youtube, Pinterest, Vimeo - Google Map, Foursquare, Geolocation, GPS, Open Street Maps - Cocos2D, OpenGL, Corona, Unity3D, Box2D - Game Center, In-App Purchase, RPG server - iAd, Adwirl, Revmob, Admob, Chartboost, Tapjoy, Flurry, Testflight - Cloud services: iCloud, Rackspace, Zoho CRM, Salesforce, Azure, AWS, EC2, Dropbox - Mobile Game Genre: Casino Slot machine, Flappy bird, Poker, Chess, RPG, Arcade

$40.00 /hr
161 hours
5.00
David Mulder

David Mulder

Senior Engineer for Mobile APP(IOS&Droid).

Netherlands - Last active: 6 hours ago - Tests: 10

Hello, I'm David, highly experienced Mobile Engineer. I have 6+ years of rich experience in Mobile app&Web development. I have been working as a mobile developer since I graduated university. Although android and ios version and device are getting different every year, I'm the person who is eager to learn new tech so learnt new industry technology as soon as it was born. I can start to work on your project right away and I can dedicate my full time on it to complete it asap. My profile at Linkdln: https://www.linkedin.com/profile/preview?vpa=pub&locale=en_US My works at apple store and google play store: https://www.dropbox.com/s/zipmcx7xa7e18es/MobileApps%28IOS_Android%29.pdf?dl=0 Thanks for your reading me fully.

$55.56 /hr
3 hours
4.98
Vasyl Popov

Vasyl Popov

Mobile(iOS, Android) and Mac Developer

Ukraine - Last active: 6 days ago - Tests: 5

Over the last 5 years, I have strong experience in developing the iOS/Android and OS-X app/games as well as backend web service api. I also have deep knowledge and experiences in the following areas: SQL/SQLite databases, JSON libraries, Image Processing, Audio/Video Streaming, Social Network - Facebook, Twitter, Google API, Google Glass, and their integration with iOS applications. In the wide range of platforms, including iOS | iPhone | iPad, Android, I have developed 40+ apps/games available at Android Market and Apple Store. My Development Areas are as following ; ✔ iPhone, iPod, iPad, mac, Android, Web (iOS 6, 7, 8 and various os-x versions) ✔ objective-c, swift, java, c++, qt, cocoa, cocoa-touch, openGL ✔ Cocos2D, Box2D, Corona, PhoneGap, Sencha-touch, Unity3D. ✔ Social Media - Facebook, Twitter, Google+, Instagram ✔ Google Map Service, Apple Map Service, Foursquare, Geo Location ✔ CoreData, CoreGraphics, Animation ✔ Web Service, Ajax, XML, JSON, RSS, SOAP, WSDL ✔ PHP, MySQL, SQLite, HTML, HTML5, JavaScript ✔ Live Stream Video/Audio. Regards. Vasyl.

$39.99 /hr
229 hours
5.00
Ferenc Knebl

Ferenc Knebl

Senior Mobile Developer for iOS8 and Android, Game...

Hungary - Last active: 8 days ago - Tests: 9

When I am really happy? I love to hear: "You are doing a great job!" Over the last 10 years, I have been working in IT fields. I got very systematical knowledge and skills of producing software products throughout the analysis of requirements, system design, database schema design, construction of code, deploying and testing. Since 2010 I have started the iOS programming and become very familiar about its development. I am able to work for Android mobile app development as well. So now I am very confident to work with potential clients with various mobile app specifications. I will do the best of my abilities and knowledge to build the apps for them. I love to skate where the puck is going to be, not where it has been. Followings are my major skill sets: ✇ Mobile app & game development ➢ PhoneGap : Cordova, Ionic, Jquery Mobile & Angular Mobile UI ➢ Social Networking, Entertainment, Lifestyle, Education, Business Apps ➢ Google Map, Foursquare, Geolocation, GPS, Open Street Maps ➢ Parse.com, JSONKit, RESTKit, TestFlight, AFNetworking ➢ ApplePay, Stripe, Authorize.Net, Paypal, SagePay,WePAY ➢ XMPP, QuickBox, VSee, OpenTok, Skype, WebRTC ➢ Cocos-2D, Box2D, 2D-x, Unity 3D, Admob, Revmob, Chartboost, Flurry ➢ Push notification(iPhone/Android), Local Notification on Mobile app
 ➢ Facebook, Twitter, Linkedin, Instagram, Youtube, Pinterest, Vimeo ➢ Barcode, QR scanner (iPhone/Android)
 ✇ Web Development ➢ CarrierWave, Kaminari, HAML, SASS, Jammit ➢ Laravel, Symfony2, CodeIgniter, Yii, Zend ➢ Parse.com, Windows Azure, Amazon Web services, Heroku ➢ BackboneJS, AngularJS, EmberJS Best Regards. Ferenc.

$40.00 /hr
47 hours
5.00
Frederic Bonnet

Frederic Bonnet

France - Last active: 8 days ago

Better call Fred. I code therefore I am. I wrote my first program when I was 12. It was on a 16-kB Sinclair ZX-81 plugged on the living room TV. Ah, memories. Professional R&D engineer since I'm 23. Now I am 41. After all these years I think I can program just about anything, from back office to end user GUIs. I especially like algorithmic stuff (I have a research background in CS and computational geometry) and system-level C. But while implementation is only the final stage, design is the most important part in a project. I've been a senior software architect for some years now, so I can help you besides mere coding tasks (e.g. refactoring existing codebases). I also enjoy data mining and analysis. I'm fluent in English but my native language is French, so if you also have translation jobs that involve technical knowledge then I can help as well. I routinely write technical documentation for my daytime job in the telco industry (specifications, design, operation manuals, etc).

$25.00 /hr
22 hours
5.00
Kent K.

Kent K.

Senior Mobile App (iOS/Android) Developer

Finland - Last active: 11 days ago - Tests: 9

Developing applications for iPhone/Android was my favorite hobby, and now, after 8 years of intensive practice, it has become my professional business. Over this time I've developed a wide range of projects in iOS and Android , and gained a lot of experience in creating quality applications. Have a strong knowledge in C++ ,Objective-C and Java. Responsible, self-motivated, have ability to work in a team, within tight deadlines and under pressure. Always interested in learning new technologies and improving my programming skills. I'm working with great app wireframe designer, so if your project requires a graphics and constructing the UI, you may be interested in his services too. I have all required equipment and devices for effective testing and debugging, such as iPhone 4S,5S,6, iPad 2, iPad 3, iPod Touch 5, Galaxy Tab, Samsung Tablet & smarphone, HTC, Lenovo smartphone.

$70.00 /hr
52 hours
4.86
Christoph Peters

Christoph Peters

Senior App Developer

Germany - Last active: 12 days ago - Tests: 2

Dear Clients. Over the last 6 years, I had developed a lot of successful mobile apps. Most of them made great success on the App-store and Google-play. My Expertise are - iPhone, iPad, iPod Application Development, iPhone Support, iPad UI Android Development, Android SDK 
- GPS(iPhone/Android), Google Map, MapKit, GeoLocation, CoreLocation, CoreDate, CoreLocation on mobile SDK 
- Objective C, C++, Java, Java Script
 - In-App Purchase(iPhone/Android), iAd, AdMob(iPhone/Android), AdWhirl, TapJoy, RevMob(iPhone/Android), Flurry(iPhone/Android), ChartBoost : iOS(iPhone/iPad) and Android 
- Mobile web services such as JSON, XML, SQLite, Html5, CSS, MySQL, Oracle, JQuery
 - Mobile Graphic Design : (iPhone/Android/Windows) 
- Barcode, QR scanner (iPhone/Android)
 - Cocos2D, Box2D, OpenGL, Unit3D : iPhone/Android
 - Push notification(iPhone/Android), Local Notification on Mobile app
 - SVN, GitHub, Bitbucket I look for long-term relationship based on trusts and successes. If we have a chance to work together, I am sure you will be very satisfied with my work like my previous clients did. Thank you Christoph

$55.56 /hr
286 hours
5.00
Mark Campbell

Mark Campbell

Mobile Game / Server / App developer.

United States - Last active: 4 days ago - Tests: 2

During last 5 years, I have developed lots of apps and games for iOS and Android platforms, which are widely used over the world. I am expert in development tools such as Xcode, Android Studio. As a developer, I promised with you following services; - High Quality - Smart & User-friendly UI - Hard Working - Double Speed - Idea Contribution I have rich experienced in the following areas. APIs & Frameworks ✔ Languages: Objective-C, Swift, Java, MySQL, Visual C++. ✔ Platforms: Android, iOS, Windows ✔ Tools: Xcode, Eclipse, VisualStudio. ✔ Frameworks: Cocos2d-x, Cocos2d ✔ Web Service, XML, JSON, RSS ✔ Admob, Chartboost, RevMob Code Management - Git ( Github, Bitbucket, Barnyard ... ) - Svn ( XP-Dev, ... ) Thank you for reading my letters. Mark Campbell.

$25.00 /hr
66 hours
5.00
Stefan Bowman

Stefan Bowman

PHP, web development and Multimedia

Italy - Last active: 4 days ago - Tests: 5

Since 1989 I have been an informatic teacher, qualified lecturer and freelance consultant for many school institutes and enterprises in Milan, Lodi and their surroundings, taking care of such issues as server side software programming, security and installation of Linux & SUN Solaris web and intranet servers. I’ve been Technical Product Manager in Digivision srl, Multimedia and software development lecturer for “CFP Canossa di Lodi” and SAE institute in Milan, recently I have been taking care of Value Added Services security and software development. Good English, French and Italian , written and spoken. I have a in depth knowledge of web sites and multimedia products authoring and programming, being also product manager for Digivision Srl about various audio and video digital compression technologies. I am an Internet software developer producing dynamic and interactive Web pages, search engines, e-commerce sites and web applications on UNIX, LINUX and Microsoft NT server, using PHP, ZEND FRAMEWORK, Mysql, Oracle, XML, JSON, Flash ActionScript, Director Lingo and others. Good level of APACHE, PHP, MYSQL, FTPD, SAMBA, NESSUS, TRIPWIRE, IPTABLES configuration and installation, set up of apache based reverse proxy in mod security for Linux and Solaris8

$35.00 /hr
432 hours
5.00
Wolfgang Herrmann

Wolfgang Herrmann

Super Mobile App Developer

Germany - Last active: 5 days ago - Tests: 4

I pursue the Best Quality. I will do best for your satisfaction. I have 6+ years of experiences in mobile app programming that include almost 100 projects. My skills: iOS, Android, Windows app programming cocos2d, box2d, OpenGL, Corona, Unity 3D Game Center, In-app purchase, RPG Server Chartboost, Revmob, Upsight, Adcolony, Applovin, Admob, Vungle, Flurry, mopub, Tapjoy Facebook, Twitter, Instagram, Youtube MySQL, SQLite, Oracle, ODBC Parse.com, Amazon S3, Twillio Chat and Message Engine Video/audio/image processing Video/audio streaming

$33.33 /hr
20 hours
5.00